/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/

// @ts-check

const cp = require('child_process');
const path = require('path');
const os = require('os');
const opn = require('opn');
const crypto = require('crypto');
const minimist = require('minimist');

const args = minimist(process.argv.slice(2), {
	boolean: [
		'help',
		'launch'
	],
	string: [
		'host',
		'port',
		'driver',
		'connection-token',
		'server-data-dir'
	],
});

if (args.help) {
	console.log(
		'./scripts/code-server.sh|bat [options]\n' +
		' --launch              Opens a browser'
	);
	// more help options will be printed by startServer
}

const serverArgs = process.argv.slice(2).filter(v => v !== '--launch');

const HOST = args['host'] ?? 'localhost';
const PORT = args['port'] ?? '9888';
const TOKEN = args['connection-token'] ?? String(crypto.randomInt(0xffffffff));

if (args['connection-token'] === undefined && args['connection-token-file'] === undefined && !args['without-connection-token']) {
	serverArgs.push('--connection-token', TOKEN);
}
if (args['host'] === undefined) {
	serverArgs.push('--host', HOST);
}
if (args['port'] === undefined) {
	serverArgs.push('--port', PORT);
}

const env = { ...process.env };

const entryPoint = path.join(__dirname, '..', 'out', 'server-main.js');
startServer();

function startServer() {
	console.log(`Starting server: ${entryPoint} ${serverArgs.join(' ')}`);
	const proc = cp.spawn(process.execPath, [entryPoint, ...serverArgs], { env });

	proc.stdout.on('data', data => {
		// Log everything
		process.stdout.write(data);
	});

	// Log errors
	proc.stderr.on('data', data => {
		process.stderr.write(data);
	});

	proc.on('exit', (code) => process.exit(code));

	process.on('exit', () => proc.kill());
	process.on('SIGINT', () => {
		proc.kill();
		process.exit(128 + 2); // https://nodejs.org/docs/v14.16.0/api/process.html#process_signal_events
	});
	process.on('SIGTERM', () => {
		proc.kill();
		process.exit(128 + 15); // https://nodejs.org/docs/v14.16.0/api/process.html#process_signal_events
	});

}

if (args['launch']) {
	opn(`http://${HOST}:${PORT}/?tkn=${TOKEN}`);
}
